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船舶在隨機冰作用下的運動建模及應(yīng)用

發(fā)布時間:2018-06-05 04:33

  本文選題:隨機冰模型 + 船舶運動數(shù)學(xué)模型。 參考:《大連海事大學(xué)》2015年碩士論文


【摘要】:本文總結(jié)國內(nèi)外船舶冰區(qū)航行運動建模的研究現(xiàn)狀,結(jié)合《STCW公約》馬尼拉修正案針對極地水域航行船舶的船長和高級船員的培訓(xùn)提出的指導(dǎo)性建議,和挪威船級社提出的航海模擬器的新認證標準,闡述研究船舶在隨機冰作用下運動建模這一課題的必要性。本文綜合分析了海冰的物理性質(zhì)和力學(xué)性質(zhì),并在分析破冰船破冰過程的基礎(chǔ)上進行了船舶在隨機冰區(qū)航行時的受力分析,基于日本MMG分離模型思想建立了船舶在隨機冰作用下的三自由度運動數(shù)學(xué)模型。建模過程中,分別計算裸船體、螺旋槳及舵葉的水動力和力矩;同時考慮船舶所受到的隨機海冰的干擾,最終建立隨機冰作用下船舶運動方程組。為檢驗?zāi)P偷恼_性,本文利用C++編程語言對所建立的數(shù)學(xué)模型進行了仿真,采用四階龍哥-庫塔積分方法求解運動方程組,實現(xiàn)了實時顯示船舶的運動位置和狀態(tài)。本文以破冰船AHTS/IB Tor Viking Ⅱ為例,進行了直航試驗和旋回試驗,通過仿真測試結(jié)果可知,所建模型是正確和合理的。本文建立的隨機冰作用下船舶運動數(shù)學(xué)模型,在冰區(qū)航行船舶操縱性預(yù)報中的應(yīng)用,不僅為冰區(qū)船舶安全航行提供決策;而且為完善航海模擬器中的船舶冰區(qū)航行操縱數(shù)學(xué)模型打下基礎(chǔ),具有一定的實際應(yīng)用價值。
[Abstract]:In this paper, we summarize the research status of ship navigation motion modeling in ice regions at home and abroad, and combine the Manila Amendment of "STCW Convention" with the guiding suggestions for the training of masters and officers of ships sailing in polar waters. And the new certification standard of navigation simulator put forward by Norwegian Classification Society. The necessity of studying the subject of ship motion modeling under the action of random ice is expounded. In this paper, the physical and mechanical properties of sea ice are comprehensively analyzed, and on the basis of analyzing the ice breaking process of icebreaker, the force of ship sailing in random ice area is analyzed. Based on the idea of Japanese MMG separation model, a three degree of freedom mathematical model of ship motion under the action of random ice is established. In the process of modeling, the hydrodynamic force and torque of the naked hull, propeller and rudder blade are calculated, and the equations of ship motion under the action of random ice are established considering the disturbance of random sea ice to the ship. In order to verify the correctness of the model, the mathematical model is simulated by C programming language, and the motion equations are solved by the fourth order Rungo-Kutta integral method, which can display the position and state of the ship in real time. Taking AHTS / IB Tor Viking 鈪,

本文編號:1980535

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